First & foremost, one should have a valid prescription from a registered medical practitioner for the patient.Then the rest of the points suggested by other 2 answers can follow.
Things to remember or take care of while giving medicines to patients is sometimes summarized in the "5 R of Medicine". These are:
- Right patient
- Right medicine
- Right dose
- Right route
- Right time
Make sure that the medicine prescribed is for the patient to which medicine is being given. For example in a hospital,where there are many patients, there is a possibility of the prescriptions of different patient getting mixed up. Care must be taken to ensure that this does not happen.
The medicine being given must be the right medicines. Mistakes in giving the right medicine can occur due to several reasons. For example, medicines with similar names, medicines tat look alike, or mixing up between different medicines prescribed for a patient.
The medicines must be given in right dose - not more and not leas than what is prescribed. Also a medicine may be administered in several forms, taken as a pill, taken as a solution, to be sucked, to be inhaled, and injection. Care must be taken to ensure that the medicine is administered in the right way - that is by the right route.
Medicines are required to be taken at different time The time may be specified in different way such as by clock time, in relation to other activities of patients like taking meals or sleeping, and difference of time between administering two medicines or two consecutive dose of the same medicine. Care must be take to ensure that the medicine is administered at the right time.
You should keep the following things in mind:
1) whether you are maintaining the right dosage as well as power/potency of the medicine;
2) whether you are administering at the right hour/time as prescribed;
3) whether the patient shows particular indications which require to be immediately taken care of;
4) whether you have taken measures for yourself, if any, before such administering.